Platform for power-motors.



No. 813,444. PATENTED FEB. 27, 1906. A. NACKE.

PLATFORM FOR POWER MOTORS.

APPLICATION FILED MAB..25. 1905.

'o'n'rrnn stages PATENT orrron.

ARNOLD NACKE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOItOF O NE- HA LF TO ISIDOR KITSEE, OF PHILADELPHIA, PENNSYLVANIA.

im siaeea. Specification of Letters Patent. Patented Feb. 27, 1906.

Application filed March 25. 1905. Serial No. 252,058.

To all ll-Z7101, it 1-way concern: form a yielding material-such, for instance, Be it lznown that I, ARNOLD NACKE, of the as aheavy s ring or heavy piece of rubberace city and county of Philadelphia, State of should be p Having now described my invention, what Pennsy. Jania, have invented certain new and I claim as new, and desire to secure by Let- 5 useful Improvements in Platforms for Power-- Motors (Gase No. 242,) of which the followters Patent, is ing is a specification. 1. A platform for power-motors embracing My invention relates to an improvement in the base proper, uprights securing said base latforius for power-motors. Its object is to l to the joist of the ceiling of the room in which lessen the vibration of such power-motors on the platform is placed, a swivel-brace forcing buildings in which they are placed. the platform upward and a swivel brace Referring to the drawings, Figure 1 is a side forcing the platform downward, a floor and elevat on, partially in section, of the platmeans to support part of said platform on said form and the power-motor (here shown as a floor. I 5 gas-engine) placed thereon. Fig. 2 is a front 2. In combination with a platform on elevation, partially in section, showing the which apower-motor is placed, means to keep platform with the gas-engine placed thereon. said platform suspended between the floor In the figures, A is the platform as an enand ceiling of the space in which said plattirety;.B, the power-motor placed thereon form is placed, swiveled means to force said The platform embraces the base proper, C, platform upward and swiveled means to resting with one end on the floor D. This base force said platform downward and means to is secured with the aid of the upright E and support part of said. platform on the floor of the swiveled bars E and E to the beam or said space. joist of the ceiling F. Of the swiveled bars 3. Means to lessen the vibration of a power- E and E one exerts a downward pressure on motor on the building in which it is placed, the base and the other two exert an u Ward said means embracing a platform suspende pressure on the base, as is signified by t e arfrom the ceiling, -means to force said platrows in the drawings, this for the purpose of holding the base rigid. In constructing this platform I found that whereas if this platform is entirely free from the floor the pressure and vibration on the ceiling are very great the addition of a resting-point, no matter how slight, not only lessens the strain on the ceiling, but also lessens the vibration to a great extent. I also found that when, as is usually the case, the base is held only by the straight uprights to the joist of the ceiling or by 11pi PLATFORM FOR POWER-MOTORS. a

downward, and means to support part of said platform on the floor.

4. In combination with a power-motor, a platform for said motor, uprights securing said platform to a ceiling, and in further com bination with means to secure part of said platform to the floor.

5. In combination with a power-motor, a

latform whereon said motor is placed, up-

rights securing said platform to a ceilin ri hts which only exert a pressure in one 1- and in further combination with adjustabIe 4 rectio. -the required rigidity is never attained; means, one to force the platform upward and but when, as in my invention, one of the bars the other to force the platform downward.

- exerts a pressure so as to force the platform In testimony whereof I hereby sign my downward and the other exerts a pressure so name, in the )resence of two subscribing witas to force the platform upward a degree of nesses, this 7th day of March, A. D. 1905.

rigidity is reached not otheruise attainable. ARNOLD NACKE.

Instead of resting the platform-base di- Witnesses: reetly on the floor pro er it is preferred that EDITH P. STILLEY, between the floor an the base of the plat- II. (1 YETTER.

form upward, means to force said platform 

